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VFR cruising altitude rules in the US and Canada [ edit ] In the US, there are specific VFR cruising altitudes, based on the aircraft's course, to assist pilots in separating their aircraft while operating under visual flight above 3,000 ft above the surface (AGL) but below 18,000 ft Mean Sea Level (MSL).
The flight visibility at the cruising altitude of the aircraft must be at least 5 miles and the weather at the destination aerodrome must be forecast to have a sky condition of scattered cloud or better, a ground visibility of 5 miles or greater with no forecast of precipitation, fog, thunderstorm or blowing snow, and that these conditions must ...
Separation at cruising altitude (aircraft passing below). Air traffic controllers apply rules, known as separation minima, to do this. Pairs of aircraft to which these rules have been successfully applied are said to be separated: the risk of these aircraft colliding is therefore remote.
VFR over-the-top is different from VFR-on-top, in that VFR-on-top is an IFR clearance that allows the pilot to fly VFR altitudes, while VFR over-the-top is strictly a VFR operation in which the pilot maintains VFR cloud clearance requirements while operating on top of an undercast layer.
The MEF on Canadian VFR navigation charts is calculated by taking the higher value of: . the top elevation of the highest obstacle plus the vertical accuracy (a variable number of feet) of the terrain source data; or
Visual flight or visual attitude flying is the control of an aircraft via outside references (such as the sky or the runway in takeoff). [1] For aircraft, the primary visual reference used is usually the relationship between the aircraft's "nose" or cowling against the natural horizon.
ICAO recommends for the lower level to coincide with a VFR cruising level if the lower level limit of a control area is above 900 m (3000 feet) MSL (mean sea level), and the VFR cruising level to not have to be lowered to less than 200 m (700 feet) due to atmospheric conditions. [1]
VFR / VMC visibility requirements in the US. In aviation, visual meteorological conditions (VMC) is an aviation flight category in which visual flight rules (VFR) flight is permitted—that is, conditions in which pilots have sufficient visibility to fly the aircraft maintaining visual separation from terrain and other aircraft.